Date: Tue, 30 Dec 2008 02:05:24 +0000 From: Bruce Cran <bruce@cran.org.uk> To: Christian Weisgerber <naddy@mips.inka.de> Cc: Nate Eldredge <neldredge@math.ucsd.edu>, freebsd-hackers@freebsd.org Subject: Re: lzo2 shows insane speed gap Message-ID: <20081230020524.2563a6ac@gluon> In-Reply-To: <20081230004747.GA55542@lorvorc.mips.inka.de> References: <gjbf7c$hbm$1@lorvorc.mips.inka.de> <Pine.GSO.4.64.0812291512490.22968@zeno.ucsd.edu> <20081230004747.GA55542@lorvorc.mips.inka.de>
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On Tue, 30 Dec 2008 01:47:47 +0100 Christian Weisgerber <naddy@mips.inka.de> wrote: > Nate Eldredge: > > > It might be good first to rule out compiler / library differences. > > Sure. Let's cut this short: > > "Slow" > Athlon 64 X2 5200+ 2.6 GHz, FreeBSD 8.0-CURRENT amd64 ~60 > min Phenom 9350e 2.0 GHz, OpenBSD 4.4-CURRENT amd64 > ~80 min UltraSPARC-IIe 500 MHz (Blade 100), OpenBSD 4.4-CURRENT > sparc64 10 h++ > > "Fast" > Pentium 4 3.0 GHz, FreeBSD 6.4-RELEASE i386 36 s > Xeon E5405 2.0 GHz (PowerEdge 1950), OpenBSD 4.4-CURRENT amd64 47 s > Alpha 21164A 500 MHz (AlphaPC164), OpenBSD 4.4-CURRENT alpha 9 > min > > Let me draw your attention to the fact that the two amd64 systems > that run different operating systems are both slow, whereas the two > amd64 systems that run the same operating system (compiler, libraries) > diverge in speed. > > > Oh, and everybody is invited to run > > $ cd /usr/ports/archivers/lzo2 && make I'm running 8.0-CURRENT amd64 here on a Turion64 X2 machine. Without malloc debugging (malloc.conf -> aj) 'make test' takes 25s; after removing malloc.conf thus turning on debugging, it takes over 10 minutes. -- Bruce Cran
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